CLIVET WSAT-YSC4 - Dismantling; Labelling; Recovery; Transport, Mark and Storage

Dismantling
Before performing this procedure, it is essential that the
technician has become familiar with the equipment and the
relative details.
We recommend employing good practices for a safe
recovery of the refrigerants.
Before performing the operation, take a sample of oil and
refrigerant should an analysis be necessary before reusing
the regenerated refrigerant. Before performing the operation,
check the availability of electricity.
 Become familiar with the equipment and how it
functions.
 Electrically isolate the system.
Before attempting the procedure, check that:
 The mechanical manipulation equipment is available, if
necessary, to handle refrigerant tanks;
 All the personal protection equipment is available and
employed correctly;
 The recovery procedure is monitored at all times by
skilled personnel;
 The recovery equipment and tanks comply with suitable
standards.
 If possible, pump the cooling system.
 If it is not possible to obtain a vacuum, make sure that
a collector removes the refrigerant from various parts of
the system.
 Before proceeding with the recovery, check that the tank
is located on the scales.
 Start up the recovery machine and use it following the
instructions by the manufacturer.
 Do not fill the tanks excessively. (Do not exceed 80% of
the liquid volume).
 Do not exceed the tank's maximum operating pressure,
not even momentarily.
 Once the tanks are filled correctly and the process is
over, make sure that the tanks and equipment are
immediately removed from the site and that all
insulation valves on the equipment are closed.
 The refrigerant recovered must not be loaded into
another cooling system unless it has been cleaned and
checked.
Labelling
Equipment must be labelled reporting the dismantling and
emptying of the refrigerant.
Labels must be dated and signed.
Make sure all the equipment is labelled and reporting the
presence of flammable refrigerant.
Recovery
When removing the refrigerant from the system, please
adopt good practices to remove all refrigerants safely in
case of both assistance or decommissioning operations.
When transferring the refrigerant into the tanks, make sure
only suitable tanks are used to recover the refrigerant.
Make sure enough tanks are used.
All the tanks to be used are designated for the recovered
refrigerant and are labelled for that specific refrigerant (e.g.
special tanks for refrigerant collection.
Tanks must be equipped with a perfectly-functioning safety
valve and relative interception valves.
Empty recovery tanks are evacuated and, if possible, cooled
before recovery.
Recovery equipment must be perfectly functioning with the
respective instruction booklets at hand and they must be
suitable to recover flammable refrigerants. A series of
perfectly-functioning calibrates scales must also be available.
Flexible tubes must be equipped with leak-proof
disconnection fittings in good condition. Before using the
recovery machine, make sure it is in good condition,
maintained and that all associated electrical components
are sealed to avoid combustion in case of a refrigerant
leak. Please contact the manufacturer in case of doubt.
The refrigerant recovered must be taken to the supplier in
suitable recovery tanks and with the relative waste transfer
note suitably filled in.
Do not mix the refrigerants in the recovery units nor in the
tanks.
If it is necessary to remove compressors or compressor
oils, make sure they are evacuated to an acceptable level
to make sure no trace is left of the flammable refrigerant
inside the lubricant. The evacuation process must be
performed before taking the compressors back to the
suppliers.
The electric resistance must be used with the compressor
body only to accelerate this process.
Operations to discharge the oil from the system must be
performed in full safety.
Transport, mark and storage
1 Transport of equipment containing flammable refrigerants
Compliance with transport regulations
2 Marking of equipment with symbols
Compliance with local regulations
3 Disposal of equipment employing flammable refrigerants
Compliance with national regulations
4 Storage of equipment/devices
The equipment must be stored in compliance with the
instructions provided by the manufacturer.
5 Storing packed (unsold) equipment
Packing must be performed in such a way that
mechanical damage to the equipment inside it does not
cause refrigerant leaks.
The maximum number of elements that can be stored
together is determined by local regulations.
8 - SAFETY WARNINGS FOR OPERATIONS ON UNITS CONTAINING R32